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How Science Works 1. What is a theory? __________________________________________________ ___________________________________________________________________ ________________________________________________________________ [1] View the Power Point presentation Star Wars and then answer the questions below. 2. (a) Name and describe the two early theories which try to explain how the Sun gets its energy to shine. I. ______________________________________________________________ ______________________________________________________________ ______________________________________________________________ ______________________________________________________________ ___________________________________________________________ [2] II. ______________________________________________________________ ______________________________________________________________ ______________________________________________________________ ______________________________________________________________ ___________________________________________________________ [2] (b) What was the age of the Sun according to the earlier of these two theories? ________________________________________________________________ [1] 3. (a) What was the major problem with both these theories? ___________________________________________________________________ ________________________________________________________________ [1] (b) Name and describe the two pieces of “evidence” that was used against the two theories. I. ______________________________________________________________ ______________________________________________________________ ______________________________________________________________ ___________________________________________________________ [2] II. ______________________________________________________________ ______________________________________________________________ ______________________________________________________________ ___________________________________________________________ [2]
